Revision of the genus Glyptoxanthus A. Milne-Edwards, 1879, and establishment of Glyptoxanthinae nov. subfam. (Crustacea: Decapoda: Brachyura: Xanthidae) Author Mendoza, Jose Christopher E. Author Guinot, Danièle text Zootaxa 2011 3015 29 51 journal article 46405 10.5281/zenodo.207310 fae7578a-d45c-4fc5-9eee-78b48e175d72 1175-5326 207310 Glyptoxanthus corrosus ( A. Milne-Edwards, 1869 ) ( Figs. 4 , 10 D) Xantho corrosus A. Milne-Edwards, 1869 : 376 ( type locality: St. Vincent Is., Cape Verde ). Actaea ( Glyptoxanthus ) corrosa , Monod 1956 : 298 . Glyptoxanthus corrosus , Bouvier 1922 : 67 , pl. 6 figs. 4, 6. — Guinot 1967 : 556 , fig. 21; 1971: 1073; 1979: 68, figs. 9, 18E. — Manning & Holthuis 1981 : 135 . —Ng et al . 2008: 199 (list). Material examined . Cape Verde : Holotype , male (dry), 26.6 × 18.7 mm (MNHN-B3015), St. Vincent Is., coll. M. Bouvier, 1868-1869 . Diagnosis . Carapace transversely ovate, width-to-length ratio 1.4; gastric, branchial, cardiac and intestinal regions well separated by wide and deep furrows, but subregions (i.e., 1M+2M+3M; 1L+2L+3L+4L+5L+6L) more-or-less fused; 4M distinct, bridging gastric and cardiac regions; carapace vermiculations showing traces of fused granules, anastomosing, forming a regular reticulate pattern, particularly on gastric and branchial regions. Anterolateral margin poorly divided into low lobes, last lobe most definite. Anterior thoracic sternum moderately eroded, with somewhat reticulate sculpturing. G1 long and slender, apex somewhat tapering and devoid of setae, studded with spiniform granules. Remarks. Alphonse Milne-Edwards (1869) described Xantho corrosus from St. Vincent Island, in the Cape Verde Archipelago, and later ( A. Milne-Edwards 1879 ) he transferred it to his new genus Glyptoxanthus . It is easily distinguished from a sympatric species, G. cavernosus ( A. Milne-Edwards, 1878 ) , and from other congeners by the unique sculpturing of the dorsal carapace: i.e. fused carapace subregions, anastomosing and reticulate pattern of vermiculations, and wide and deep cervical and branchio-cardiac grooves. Ecology and geographical distribution. Glyptoxanthus corrosus is a singular and rare species, only known from the type specimen, which is from Cape Verde , off the northwestern coast of Africa. Very little is known about the biology of this species (see Guinot 1979 ).